Recherches sur le spectre solaire
E681648
Recherches sur le spectre solaire is a foundational 19th-century scientific work by Anders Jonas Ångström that systematically analyzed the solar spectrum and advanced the study of spectroscopy.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Recherches sur le spectre solaire canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T7685597 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Recherches sur le spectre solaire Context triple: [Anders Jonas Ångström, notableWork, Recherches sur le spectre solaire]
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A.
On the Relations between the Spectra and Other Characteristics of the Stars
"On the Relations between the Spectra and Other Characteristics of the Stars" is a landmark 1914 paper by Henry Norris Russell that helped establish the relationship between stellar spectral type, luminosity, and other properties, laying groundwork for the Hertzsprung–Russell diagram and modern stellar astrophysics.
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B.
Fraunhofer lines
Fraunhofer lines are the dark absorption lines observed in the solar spectrum that reveal the presence and properties of elements in the Sun’s atmosphere and intervening gases.
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C.
Kirchhoff's three laws of spectroscopy
Kirchhoff's three laws of spectroscopy are foundational principles in physics that explain how continuous, emission, and absorption spectra arise from interactions between matter and radiation.
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D.
Théorie mathématique des phénomènes thermiques produits par la radiation solaire
Théorie mathématique des phénomènes thermiques produits par la radiation solaire is a foundational scientific work by Milutin Milanković that mathematically analyzes how variations in solar radiation drive Earth’s climate and long-term temperature changes.
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E.
Saha ionization equation
The Saha ionization equation is a fundamental formula in astrophysics and plasma physics that relates the ionization state of a gas in thermal equilibrium to its temperature and pressure, crucial for understanding stellar atmospheres and spectra.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Recherches sur le spectre solaire Target entity description: Recherches sur le spectre solaire is a foundational 19th-century scientific work by Anders Jonas Ångström that systematically analyzed the solar spectrum and advanced the study of spectroscopy.
-
A.
On the Relations between the Spectra and Other Characteristics of the Stars
"On the Relations between the Spectra and Other Characteristics of the Stars" is a landmark 1914 paper by Henry Norris Russell that helped establish the relationship between stellar spectral type, luminosity, and other properties, laying groundwork for the Hertzsprung–Russell diagram and modern stellar astrophysics.
-
B.
Fraunhofer lines
Fraunhofer lines are the dark absorption lines observed in the solar spectrum that reveal the presence and properties of elements in the Sun’s atmosphere and intervening gases.
-
C.
Kirchhoff's three laws of spectroscopy
Kirchhoff's three laws of spectroscopy are foundational principles in physics that explain how continuous, emission, and absorption spectra arise from interactions between matter and radiation.
-
D.
Théorie mathématique des phénomènes thermiques produits par la radiation solaire
Théorie mathématique des phénomènes thermiques produits par la radiation solaire is a foundational scientific work by Milutin Milanković that mathematically analyzes how variations in solar radiation drive Earth’s climate and long-term temperature changes.
-
E.
Saha ionization equation
The Saha ionization equation is a fundamental formula in astrophysics and plasma physics that relates the ionization state of a gas in thermal equilibrium to its temperature and pressure, crucial for understanding stellar atmospheres and spectra.
- F. None of above. chosen
Statements (42)
| Predicate | Object |
|---|---|
| instanceOf |
book
ⓘ
scientific work ⓘ spectroscopy treatise ⓘ |
| aimedAt | creating a precise map of the solar spectrum ⓘ |
| associatedWithUnit | ångström (unit of length) ⓘ |
| author | Anders Jonas Ångström ⓘ |
| centuryOfPublication | 19th century ⓘ |
| citedAs | classic work in spectroscopy ⓘ |
| contribution |
foundation for quantitative spectroscopy
ⓘ
precise wavelength determinations for many solar spectral lines ⓘ reference scale for spectral wavelengths ⓘ systematic mapping of the solar spectrum ⓘ |
| describes |
distribution of intensity across the solar spectrum
ⓘ
positions of absorption lines in the solar spectrum ⓘ |
| documentedIn | 19th-century physics literature ⓘ |
| fieldOfWork |
astrophysics
ⓘ
optics ⓘ physics ⓘ spectroscopy ⓘ |
| focusesOn |
Fraunhofer lines
ⓘ
analysis of solar spectral lines ⓘ measurement of wavelengths in the solar spectrum ⓘ |
| hasAuthor |
A. J. Ångström
ⓘ
linked to:
Anders Jonas Ångström
|
| hasAuthorNationality | Swedish ⓘ |
| hasImpactOn |
identification of chemical elements in the Sun
ⓘ
standardization of spectral wavelengths ⓘ |
| influenced |
development of astrophysical spectroscopy
ⓘ
later studies of stellar spectra ⓘ |
| influencedBy | Fraunhofer’s observations of dark lines in the solar spectrum ⓘ |
| language | French ⓘ |
| mainSubject |
solar spectrum
ⓘ
spectroscopy ⓘ |
| originalTitleLanguage | French ⓘ |
| placeInHistory | foundational work in solar spectroscopy ⓘ |
| publicationYear | 1868 ⓘ |
| relatedTo | Fraunhofer lines in the solar spectrum ⓘ |
| scientificDiscipline | spectral analysis ⓘ |
| timePeriodDescribed | mid-19th century spectroscopy ⓘ |
| title | Recherches sur le spectre solaire ⓘ |
| typeOfPublication | monograph ⓘ |
| usedMethod |
prism spectroscopy
ⓘ
wavelength calibration against known standards ⓘ |
How these facts were elicited
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Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Recherches sur le spectre solaire Description of subject: Recherches sur le spectre solaire is a foundational 19th-century scientific work by Anders Jonas Ångström that systematically analyzed the solar spectrum and advanced the study of spectroscopy.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.